Hydraulic force pump



y 4, 1939- J. G. ELMORE 2,164,580

' HYDRAULIC FORCE PUMP Filed Nov. 2, 1958 2 Sheets-Sheet 1 Inventor Jt gver Zlmdre Attorneys July 4, 1939. Q j ELMQRE 2,164,580

HYDRAULIC FORCE PUMP Filed Noxf. 2, 1938 2 Sheets-Sheet 2 Inventor $5,697 6. Elmer's Patented July 4, 1939 UNITED STATES PATENT OFFICE '4 1 Claim.

This invention relates to flushing devices for drains and more particularly to devices of this character especially adapted for use in connection' with sinks, basins, tubs, toilets, and the like and which will utilize water pressure, or which 'may be manipulated for use as a force pump or as a suction pump for forcing a passage through the drain pipe; and the present invention together with its objects and advantages will be best understood from a study of the following description taken in connection with the accompanying drawings wherein: 1

Figure 1 is an elevational view illustrating the application of the' invention.

Figure 2 is a top plan view of a frame forming part of the invention.

Figure 3 is a-bottom plan view of the device,

and

Figure 4 is a transverse sectional view taken substantially on the line 4-4 of Figure 3.

Referring more in detail to-the drawings it will be seen that, in the preferred embodiment thereof, the, device comprises an elastic "cup 5 having an integral threaded socket 6 which receives the threaded end I of a handle 8 of wood or other suitable material.

The cup 5 has moldedor otherwise substantially permanently secured to the wall thereof, as indicated generallyat 9, a nipple ill to which one end of a hose 4 may be readily coupled.

For the inner end of the nipple l0 there is provided a check valve II that normally acts .to'

close the inner end of the nipple l0.

In the present instance the check valve II is in the form of a rubber disk suitably anchored to the wallof the cup 5 or to the inner flange of the nipple I0 and provided with a formation l2 adapted to engage a'seat l3 provided therefor at the inner end of the nipple l0. Thus the valve II will serve to effectively close the inner end of the nipple and prevent backfiow of water through the nipple and the hose Ii.

The hose 4, as shown in Figure US also adapted to have an end thereof connected to the water faucet H as shown in Figure 1 to the end that water may be supplied from the faucet l4 through the hose 4 into the cup 5 to flush the drain pipe I5 of the sink, basin, or similar fixture shown generally in Figure 1 and indicated by the reference numeral l6.

For maintaining the beaded open end of the' cup 5 in contact with the bottom of the sink or fixture I6 with the cup in direct alignment with the drain there is provided a frame I1.

The frame I! may be of any suitable construction, but as shown is preferably-of skeleton form made of wire rods and ringsas shown and embodying a substantially cylindrical portion which accommodates the handle I and a flared bottom portion which conformably accommodates the cup 5 with the base ring l8 resting on the bead 5a ofthe cup as shown in Figure 1.

Obviously the weight of the frame I] will serve to maintain the beaded edge of the cup in flat contact with the bottom of the sink so that the water supplied to the cup 5 from the faucet 14 through the hose 4 will be directed into the drain, and the pressure of the water thus utilized to force a passage through the drain pipe.

Obviously when desired the cup may be operated by'grasping the handle 8 thereof in a manner to impart thereto a series of pumping movements for efiectingzif desired, by compression of the cup an additional pressure to drive the water therein into'the drain; under which conditions the, valve ll serves to prevent the water being forced back through the nipple II and the hose 4.

It will also be apparent to those skilled in the art that the device may be used after the manner of a suction pump, or in other words, in the ordinary manner, without water, pressure, and

in a manner to cause the air wig-An the drain pipe to pulsate and thus assist the removal of obstructions.

end thereof extending through said wall, a flapvalve at the inner end of said nipple for normally closing said end of the nipple, and a skeleton frame embracing said handle and cup, said frame having a substantially cylindrical portion accommodating the handle, and a substantially flared portion accommodating said cup, and said I flared portion at the end of the frame resting on said head.

JASPER G. ELMORE. 

